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Physics, 21.06.2019 20:20
Aplanet of mass m 6.75 x 1024 kg is orbiting in a circular path a star of mass m 2.75 x 1029 kg. the radius of the orbit is r 8.05 x107 km. what is the orbital period (in earth days) of the planet tplanet?
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Physics, 22.06.2019 16:00
What part of the ear is names after tools, such as the hammer and the anvil?
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A 600 kg cannon is used to fire a 15kg cannonball to the right at a velocity of 500 m/s.
What is th...
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